<?php 
/*** biggest number ***/
error_reporting(0);
?>

<?php 
if(isset($_POST['find']))
{
$first = $_POST['first'];
$second = $_POST['second'];
$third = $_POST['third'];
$fourth = $_POST['fourth'];
$five = $_POST['five'];
if($first>$second && $first>$third && $first>$fourth && $first>$five)
{
echo $first."Number is biggest in first position";
}
else if($second>$third && $second>$fourth && $second>$five)
{
echo $second."Number is biggest in second position";
}
else if($third>$fourth && $third>$five)
{
echo $third."Number is biggest in third position";
}
else if($fourth>$five)
{
echo $fourth."Number is biggest in fourth position";
}
else{echo $five."Number is biggest in fifth position";}
}


?>

<form action="biggest.php" method="post">
<input type="text" name="first" value="<?php echo $_POST['first'] ?>"/>
<input type="text" name="second" value="<?php echo $_POST['second'] ?>"/>
<input type="text" name="third" value="<?php echo $_POST['third'] ?>"/>
<input type="text" name="fourth" value="<?php echo $_POST['fourth'] ?>"/>
<input type="text" name="five" value="<?php echo $_POST['five'] ?>"/>
<input type="submit" name="find" value="Biggest" />
</form>